What makes malware malicious?

[Starmix]

Malware could attack anyone. It is short for malicious software developed by cybercriminals to hack your websites, steal data, and it has the capacity to damage or destroy your computer and computer systems. The people doing this are experts, they could be a team wanting to damage your computers or steal data for a common goal. Examples of common malware include viruses, worms, Trojan viruses, spyware, adware, and ransomware. One time my computer was attacked by a trojan virus, but am so lucky because I have installed the KASPERSKY on my laptop and Android phone. I really heard the creaking sound of the virus that was swept by Kaspersky. Malware comes in so many variants so they have so numerous methods to infect computer systems.
These are the 8 most dangerous computer malware of all time.
1. Melissa
2. ILOVEYOU
3. Code Red
4. Klez
5. Sobig
6. Mydoom
7. Sasser
8. Zeus